14kt Yellow Gold FJG Duck Pin Brooch with Large Smoky Quartz Stone 13 grams

14kt Yellow Gold FJG Duck Pin Brooch with Large Smoky Quartz Stone.  Good condition with no apparent flaws.  This is a beautiful, one of a kind piece.  It weighs appx. 13.3 grams. It measures appx. 1.5" x 1 1/8". The stone appears to be smoky color.